Base | Representation |
---|---|
bin | 111001101101… |
… | …1111111010000 |
3 | 2002221102120012 |
4 | 1303123333100 |
5 | 30221324300 |
6 | 3000334052 |
7 | 515134034 |
oct | 163337720 |
9 | 62842505 |
10 | 30261200 |
11 | 16099762 |
12 | a174328 |
13 | 6366b48 |
14 | 403a1c4 |
15 | 29cb435 |
hex | 1cdbfd0 |
30261200 has 30 divisors (see below), whose sum is σ = 72703494. Its totient is φ = 12104320.
The previous prime is 30261199. The next prime is 30261211. The reversal of 30261200 is 216203.
It can be written as a sum of positive squares in 3 ways, for example, as 2298256 + 27962944 = 1516^2 + 5288^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37427 + ... + 38226.
Almost surely, 230261200 is an apocalyptic number.
It is an amenable number.
30261200 is an abundant number, since it is smaller than the sum of its proper divisors (42442294).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30261200 is a wasteful number, since it uses less digits than its factorization.
30261200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75671 (or 75660 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 30261200 is about 5501.0180875907. The cubic root of 30261200 is about 311.6224339157.
Adding to 30261200 its reverse (216203), we get a palindrome (30477403).
The spelling of 30261200 in words is "thirty million, two hundred sixty-one thousand, two hundred".
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